Monohybrid Cross Practice

What is a dominant allele represented by?

• A lowercase letter

• A capital letter

• A number

• A symbol

What is the result of crossing a homozygous dominant allele (AA) with a homozygous recessive allele (aa)?

• All of the resulting offspring will be heterozygous (Aa).

• All of the resulting offspring will be homozygous dominant (AA).

• Half of the resulting offspring will be homozygous recessive (aa).

• All of the resulting offspring will be homozygous recessive (aa).

What is a recessive allele represented by?

• A capital letter

• A lowercase letter

• A number

• A symbol

What is the genotype of an organism?

• The physical appearance of an organism.

• The genetic makeup of an organism, represented by the alleles it possesses.

• The environment in which an organism lives.

• The process of cell division in organisms.

What is the role of alleles in inheritance?

• Alleles are identical copies of a gene that do not affect traits.

• Alleles are different versions of a gene that determine specific traits in an organism.

• Alleles are proteins that help in the expression of genes.

• Alleles are environmental factors that influence genetic traits.

What is the law of segregation in genetics?

• The law of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.

• The law of segregation states that alleles are blended together in the offspring.

• The law of segregation states that traits are inherited independently of one another.

• The law of segregation states that only one allele is passed from each parent to the offspring.

How many alleles does a child inherit from each parent for each trait?

• 1 allele from each parent

• 2 alleles from each parent

• 3 alleles from each parent

• 1 allele from one parent and 2 from the other

What does it mean for an allele to be codominant?

• Codominant alleles are both expressed in the phenotype of the heterozygote.

• Codominant alleles are completely dominant over recessive alleles.

• Codominant alleles are never expressed in the phenotype.

• Codominant alleles result in a blend of traits in the phenotype.

What is the purpose of a Punnett Square in genetics?

• To determine the physical traits of an organism

• To predict the genotypes of offspring from a genetic cross.

• To analyze the environmental factors affecting genetics

• To create a genetic map of an organism's chromosomes.

What is the significance of the F1 generation in a monohybrid cross?

• The F1 generation is the first filial generation, consisting of offspring from the parental generation, and typically shows the dominant trait.

• The F1 generation is the second filial generation, consisting of offspring from the F0 generation, and typically shows the recessive trait.

• The F1 generation is the generation that results from crossing two F2 individuals, and it shows a mix of traits from both parents.

• The F1 generation is the generation that occurs after the F2 generation, and it is used to study environmental influences on traits.